Phenyl-azo-naphthol dyes containing a disulfimide group
Abstract
Abstract A PHENYL-AZO-NAPHTHOL DYESTUFF CONTAINING A DISULFIMIDE GROUP OF THE GENERAL FORMULA: 1-((2-X,5-(R''-SO2-NH-SO2-)PHENYL)-N=N-),2-(HO-),3-(R-NH- CO-)NAPHTHALENE WHEREIN R IS AN UNSUBSTITUTED PHENYL OR NAPHTHYL GROUP OR A SUBSTITUTED PHENYL GROUP THAT IS FREE OF IONOGENIC SUBSTITUENTS AND THAT HAS A TOTAL MOLECULAR WEIGHT OF NOT MORE THAN 175, X IS -H, -CL, -CH3, AND R'' IS AN UNSUBSTITUTED PHENYL, NAPHTHYL OR BIPHENYL GROUP OR A SUBSITUTED PHENYL GROUP THAT IS FREE OF IONOGENIC SUBSTITUENTS AND THAT HAS A TOTAL MOLECULAR WEIGHT OF NOT MORE THAN 150, WITH THE PROVISO THAT WHEN X IS -CL THEN R IS A GROUP AS DEFINED OTHER THAN AN UNSUBSTITUTED PHENYL GROUP, WHICH IS SOLUBLE IN WATER AND DYES SYNTHETIC AND NATURAL POLYAMIDE FIBERS SUCH AS NYLON, SILK AND WOOL IN RED SHADES WITH LITTLE SENSITIVITY TO THE PRESENCE OF METAL IONS IN THE DYE BATH.
Inventors
- 👤 Roderick H Horning
Bibliographic Details
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